The CONTACT-PHOTO TACHOMETER permits checking and verifying throughput speed with or without substrate/belt contact. It incorporates photo and contact tachometer into a single measurement device. It features a large 5 digit display accurate to within 0.8% with a resolution of 0.1 RPM in either mode. Linear surface area reading also possible at 0.2 to 6560 ft/minute (15 cm to 2 km/minute). Full range of 0.5 to 100,000 RPM. The tachometer memory stores last, maximum, and minimum readings.